The Subtraction Game

Number of circles (n): 10

Max selection (k): 3

How to Play

• Set the number of circles (n) and maximum selection range (k)
• Players take turns clicking on highlighted circles
• When you click a circle, all circles to its right disappear
• The last k circles (or fewer if less than k remain) are always highlighted
• The player who makes the last move wins!
• Background color indicates whose turn it is